Window cleaning device



Jan. 4, 1938. A. R. FREDA WINDOW CLEANING DEVICE Filed Aug. 25, 1936Patented Jan. 4, 1938 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to certain new and useful improvements in windowcleaning devices.

The primary object of the invention is to provide a window cleaningdevice of the type that 5 may be mounted upon a window sill andpositioned for cleaning the outer sides of window panes with theoperator positioned at the inner side of the window to eliminate thedanger of falling during the window cleaning operation.

A further object of the invention is to provide a window cleaning deviceof the foregoing character that is shiftable in a horizontal directionalong a window sill and embodying a lazy-tong arrangement carrying acleaning brush or the like to be moved over a window pane,

With the above and other objects in view that will become apparent asthe nature of the invention is better understood the same consists inthe novel form, combination and arrangement 20 of parts hereinafter morefully described, shown in the accompanying drawing and claimed.

In the drawing:-

Figure 1 is a fragmentary vertical cross-sectional view through a windowconstruction, with the cleaning device secured in position on a windowsill, operable from the inner side of the window and illustrated ashaving a lazy-tong arrangement carrying a brush engaged with the outerside of a window pane;

Figure 2 is a vertical sectional view taken on line 2-2 of Figure 1,showing the lazy-tong arrangement for the support of the window cleaningbrush or the like; and

Figure 3 is a horizontal sectional view taken on line 33 of Figure l,partlybroken away.

As illustrated in Figure 1, the cleaning device is adapted to beassociated with the window construction comprising the usual windowframe 5, a sill 6 and vertically sliding sashes l carrying glass panes8.

The window cleaning device includes an elongated casing, rectangular incross-section with top and bottom walls 9 and l respectively, withconnecting side walls ll, clamp arms l2 and I3 depending from the bottomwall I0, the arm l2 being engaged with the outer side of the window sill6 while the arm I 3 has a clamp screw I4 threaded therethrough forengagement with the inner side of the window sill 6 for anchoring thecasing in position on the window sill. A longitudinally extending slotI5 is formed in the upper wall 6 of the casing and the block l6 slidablein the casing carries a screw l1 projecting upwardly through the casingslot l5 for the pivotal support of a pair of operating levers or handlesfor a lazy-tong arrangement that carries a window cleaning brush or thelike.

A pair of levers or handles I 8 are pivotally supported upon the screwpin ll above the casing anchored to the window sill and said levers l8are provided with a series of pivot openings IQ for selective mountingupon the screw pin I 7 to vary the length of throw of the ends I8a ofthe levers l8' that are engaged with the lazytong arrangement when thelevers I8 are operated by the hand gripping ends l9.

A lazy-tong arrangement is associated with the ends I 8a of the leversl8, a pin extension from each lever end lBa freely passing through ablock 2| and retained thereon by the pin 22 shown more clearly inFigure 1. A plurality of links 23 as shown in Figure 2 that constitutesthe lazy-tong arrangement has the lower links 23a thereof provided withheads 24 that are anchored as at 25 to the respective blocks 2| M whilethe upper links 23b of the lazy-tong arrangement carry a bearing memberor socket 26 for the removable reception of a handle or stud 21 carriedby a brush 28.

The casing carrying the block I6 is anchored to the window sill 6 withthe ends Illa of the levers l8 positioned at the outer side of thewindow sash 5 as shown in Figure 1. By operating the levers l8 throughthe hand grips IS, the lazy-tong arrangement 23 is moved in a verticaldirection for causing the window cleaning brush 28 or similar device tobe moved over the outer side of a window pane 8, the block l6 beingfreely slidable in the casing so that the cleaning device 28 may bemoved over the entire area of the outer side of the window pane 8. Witha device of this character, the entire outer surface of the window panemay be thoroughly cleaned while the operator is located at the innerside of the window. It is to be understood that a squeegee may besubstituted for the brush 28, or other suitable cleaning device employedto accomplish a thorough cleaning of the window pane.

While there is herein shown and described the preferred embodiment ofthe invention, it is nevertheless to be understood that minor changesmay be made therein without departing from the spirit and scope of theinvention as claimed.

I claim:-

1. In a window cleaning device, an elongated casing adapted to beanchored to a window sill at the inner side of the window and having aslotted opening extending longitudinally of its upper wall, arectangular block longitudinally slidable in the casing transversely ofthe window, a pin rising from the block through the casing slot, alazy-tong arrangement including operating means carrying the same andsupported on the pin and projecting through the window opening and awindow cleaning member carried by the lazy-tong arrangement.

2. In a window cleaning device, an elongated casing adapted to beanchored to a window sill at the inner side of the window and having aslotted opening extending longitudinally of its upper wall, arectangular block longitudinally slidable in the casing transversely ofthe window,

a pin rising from the block through the casing; slot, a pair of leversadjustably pivoted on the pin, a lazy-tong arrangement supported on thelevers and projecting through the window open ing, and a window cleaningmember carried by the lazy-tong arrangement.

lazy-tong arrangement, and a block at the outer end of each lever withthe lower links of the lazytong being attached to the blocks.

ANGELO R. FREDA.

